Methoden zur Dynamikerweiterung in der zweidimensionalen CMOS-Bildsensorik

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Nearly 80% of the worldwide semiconductor market volume is covered by standard-CMOS-technology products. Due to the increasing demand on highly flexible, reliable and robust image sensors from many different industry parts, CMOS-technology has become more and more attractive, since it offers several features in contrast to the CCD-technology. The focus of this work lies on the development of high dynamic range CMOS image sensors suitable for industrial, automotive and consumer applications. The developed sensors should yield more powerful and cost-saving system solutions compared with CCD-sensor systems that are available from the market. The work concentrates on mainly linear CMOS-sensors offering a linear dependency between illumination and electronic signal representation. The developed sensors achieve a dynamic range of more than 90dB, which is much more than CCD´s have with 50-60dB. Two sensors are presented with the first one using a mixed logarithmic/linear characteristic and the second sensor working with a multi-illumination scheme using different exposure/integration times, resp. The work finishes with a discussion of the presented sensors and their underlying signal processing algorithms and a short outlook on future developments.
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Dokumententyp:
Wissenschaftliche Abschlussarbeiten » Dissertation
Fakultät / Institut:
Fakultät für Ingenieurwissenschaften » Elektrotechnik und Informationstechnik
Dewey Dezimal-Klassifikation:
600 Technik, Medizin, angewandte Wissenschaften » 620 Ingenieurwissenschaften
Stichwörter:
dynamic range expansion, CMOS imaging, translineare Dividierer, linear, logarithmisch, Dynamik, high resolution, Helligkeitsanpassung, local brightness adaptation, CMOS-Bildsensoren
Beitragender:
Prof. Ph. D. Hosticka, Bedrich J. [Gutachter(in), Rezensent(in)]
Sprache:
Deutsch
Kollektion / Status:
Dissertationen / Dokument veröffentlicht
Datum der Promotion:
23.03.2001
Dokument erstellt am:
23.03.2001
Dateien geändert am:
03.04.2007
Medientyp:
Text